Matters needing attention in physics and chemistry experiment of senior high school entrance examination

Matters needing attention in physical chemistry experiment of senior high school entrance examination are as follows:

1. Read the instructions carefully before the experiment to understand the purpose, principle, steps and precautions of the experiment.

2, the laboratory should be kept clean and quiet, and well ventilated. Avoid using inflammable, explosive and other dangerous goods and tools.

3, should check the required experimental equipment and reagents before the experiment, to ensure that they are in good condition, the label is clear, the quality meets the requirements, and conforms to the correct quantity and proportion.

4. In the process of experimental operation, attention should be paid to the placement and use of experimental equipment. During the experiment, we should carefully observe the experimental phenomena, observe the experimental operation rules and pay attention to safety.

5. The experimental conditions such as temperature, humidity, time and pH value should be strictly controlled in the experiment to ensure the accuracy and repeatability of the experiment.

6. Observe laboratory safety regulations and pay attention to protective measures, such as wearing protective glasses, gloves and masks.

7. After the experiment, it is necessary to clean up the experimental equipment and laboratory in time, properly handle the discarded items and dangerous goods, and keep the experimental records intact.

8. The record of experimental data should be accurate, which is convenient for subsequent data analysis and report writing.

Senior high school entrance examination:

Junior high school students' academic examination, referred to as "senior high school entrance examination", is an examination to test whether junior high school graduates have reached the graduation level of junior high school.

It is a necessary condition for the issuance of junior high school diplomas. In China, these subjects are designated as subjects of national curriculum, and all of them are included in the scope of junior high school level examination. The senior high school entrance examination is conducted after the college entrance examination, and the specific time is determined by all localities.